[Avodah] Kashrus of a Restaurant Under the Supervision of its Owner

[Cantor Wolberg]

> Years ago someone told me that there is a teshuva of the Chasam Sofer
> that says that such supervision is not valid, but I do not know which
> teshuva this is

I definitely agree.
The owner is a nogea b'davar. It seems pretty obvious. Regarding  
someone's private home, there is no monetary interest involved.
I don't see how the two can be equated.